/*
 * Copyright 2011 by Graz University of Technology, Austria
 * MOCCA has been developed by the E-Government Innovation Center EGIZ, a joint
 * initiative of the Federal Chancellery Austria and Graz University of Technology.
 *
 * Licensed under the EUPL, Version 1.1 or - as soon they will be approved by
 * the European Commission - subsequent versions of the EUPL (the "Licence");
 * You may not use this work except in compliance with the Licence.
 * You may obtain a copy of the Licence at:
 * http://www.osor.eu/eupl/
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the Licence is distributed on an "AS IS" basis,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the Licence for the specific language governing permissions and
 * limitations under the Licence.
 *
 * This product combines work with different licenses. See the "NOTICE" text
 * file for details on the various modules and licenses.
 * The "NOTICE" text file is part of the distribution. Any derivative works
 * that you distribute must include a readable copy of the "NOTICE" text file.
 */


package at.gv.egiz.bku.utils;

import java.io.FilterReader;
import java.io.IOException;
import java.io.Reader;
import java.io.StringWriter;

public class DebugReader extends FilterReader {
  
  private StringWriter buffer = new StringWriter();
  
  public DebugReader(Reader in) {
    super(in);
  }
  
  public DebugReader(Reader in, String start) {
    super(in);
    buffer.write(start);
  }

  @Override
  public int read() throws IOException {
    int c = super.read();
    if (c != -1)
      buffer.write(c);
    return c;
  }

  @Override
  public int read(char[] cbuf, int off, int len) throws IOException {
    int l = super.read(cbuf, off, len);
    if (l != -1 ) {
      buffer.write(cbuf, off, l);
    }
    return l;
  }

  public String getCachedString() {
    return buffer.toString();
  }
  
}